Welcome there,
Thank you, for taking the time to discuss this. I just want to link to relevant past discussion around outdated topics:
- Help React bind/this "create-a-controlled-input" challenge - #5 by Sky020
- Should I do the Front End Libraries?
The Long and Short
- The current curriculum version is old, but the next version (7.0) is being worked on.
- In web development, it usually takes hardly any time for a well-covered topic/tool to be outdated, but the knowledge is not useless.
- We are not updating the current curriculum lessons past bug fixes, because there is little bandwidth to do so, and even less benefit.
Hope this helps